提示说加 --skip-preflight-checks ，然而 后面到了
[init] This often takes around a minute; or longer if the control plane images have to be pulled.
之后就失败了
[kubelet-check] It seems like the kubelet isn't running or healthy.
[kubelet-check] The HTTP call equal to 'curl -sSL http://localhost:10255/healthz' failed with error: Get http://localhost:10255/healthz: dial tcp [::1]:10255: getsockopt: connection refused.
搞了两天解决不了
[preflight] WARNING: docker version is greater than the most recently validated version. Docker version: 17.09.0-ce. Max validated version: 17.03
[preflight] WARNING: Connection to "https://10.10.103.25:6443" uses proxy "http://127.0.0.1:38251". If that is not intended, adjust your proxy settings
[preflight] Some fatal errors occurred:
/etc/kubernetes/manifests is not empty
running with swap on is not supported. Please disable swap
[preflight] If you know what you are doing, you can skip pre-flight checks with --skip-preflight-checks
老师能不能换个别的部署方式，例如下载好需要的软件到本地，然后手动安装。这种yum安装的方式，费了老大劲配置好代理，结果 Connection to "https://192.168.100.221:6443" uses proxy "http://192.168.100.22:10086/". If that is not intended, adjust your proxy settings
先把科学上网搞好吧，一劳永逸。kubeadm部署本质上就是先将image从grc.io下载到本地。不解决上网的问题，后面的事情都没法弄了
提示说加 --skip-preflight-checks ，然而 后面到了
[init] This often takes around a minute; or longer if the control plane images have to be pulled.
之后就失败了
[kubelet-check] It seems like the kubelet isn't running or healthy.
[kubelet-check] The HTTP call equal to 'curl -sSL http://localhost:10255/healthz' failed with error: Get http://localhost:10255/healthz: dial tcp [::1]:10255: getsockopt: connection refused.
搞了两天解决不了
初始部署肯定不能使用 --skip-preflight-checks。问题还是在下载image上。在 /etc/kubernetes/manifests/ 目录下有几个yaml文件，里面有 k8s需要的image的路径，可以先通过 docker pull 手工下载image，然后再运行 kubeadm init
这个我试过了，应该有4个
image，gcr.io/google_containers/kube-apiserver-amd64,
gcr.io/google_containers/kube-controller-manager-amd64,
gcr.io/google_containers/kube-scheduler-amd64,
gcr.io/google_containers/etcd-amd64:3.0.17
docker 全都pull了，最后还是超时失败
这我就不明白了，既然image都有了，就应该能正常init。用docker ps 能看到相应的容器吗？另外，确保手工下载的image版本与yaml中的一致
同样的问题。折磨死了。
主要还是网络问题，可参考上面的手工下载image的方法
请问下这个问题怎么解决的啊？手动拉也失败了
还要关闭swap？这个我还真没遇到过
[preflight] WARNING: docker version is greater than the most recently validated version. Docker version: 17.09.0-ce. Max validated version: 17.03
[preflight] WARNING: Connection to "https://10.10.103.25:6443" uses proxy "http://127.0.0.1:38251". If that is not intended, adjust your proxy settings
[preflight] Some fatal errors occurred:
/etc/kubernetes/manifests is not empty
running with swap on is not supported. Please disable swap
[preflight] If you know what you are doing, you can skip pre-flight checks with
--skip-preflight-checks直接init提示这个 ，然而我swapoff一直失败
先用 kubeadm reset 清理一下环境，另外建议用 apt-get install docker.io 安装 docker，这样安装出来的是 k8s 推荐的 docker 版本
/etc/kubernetes/manifests is not empty
这个是要 rm -rf /etc/kubernetes/manifests/*
manifests 是删了.
而swap怎么都关不掉，我也很无奈.
fstab注释了，重启